GB/T 39336-2020Technical requirement of roadside bag filling for gob-side entry retaining with high-water material (English PDF)
沿空留巷高水材料巷旁袋式充填技术要求
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 39336-2020 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 19, 2020
Implementation date
June 1, 2021
Scope
GB/T 39336-2020 is the English-translated version of 沿空留巷高水材料巷旁袋式充填技术要求.
GB/T 39336-2020 is the Chinese standard "Technical requirement of roadside bag filling for gob-side entry retaining with high-water material".
Its scope clause reads: This standard specifies the terms and definitions of the side bag filling technology of high-water material lanes, the strength requirements of high-water materials, the slurry transportation system, Roadside filling and retaining support requirements, filling and retaining process flow and requirements, filling body strength, underground pressure monitoring and quality inspection.
This standard is applicable to the mining roadway with coal seam inclination less than 25°, mining height less than 5.0m, and bolt-net support. Its clauses include terms and definitions.
Found what you need?
Document preview — GB/T 39336-2020
National Standard of the People's Republic of China
- ICS
- 73.020
- Classification
- D 15
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope1
- 2 Normative references1
- 3 Terms and definitions1
- 4 High water material strength requirements2
- 5 Pulp conveying system2
- 5.1 General requirements2
- 5.2 Pulping system2
- 5.3 Slurry conveying system3
- 5.4 Cleaning system3
- 6 Supporting requirements for filling and retaining lanes beside lanes3
- 6.1 In-situ and semi-in-situ lane retention3
- 6.2 Roadside support requirements4
- 6.3 Requirements for support in lane7
- 7 Process and requirements of filling and retaining lane7
- 7.1 Process flow7
- 7.2 Process requirements8
- 8 Filling body strength8
- 9 Mine pressure monitoring8
- 10 Quality inspection8
1 Scope
This standard specifies the terms and definitions of the side bag filling technology of high-water material lanes, the strength requirements of high-water materials, the slurry transportation system,
Roadside filling and retaining support requirements, filling and retaining process flow and requirements, filling body strength, underground pressure monitoring and quality inspection.
This standard is applicable to the mining roadway with coal seam inclination less than 25°, mining height less than 5.0m, and bolt-net support.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB 3836.2 Explosive atmosphere Part 2.Equipment protected by flameproof enclosure "d"
GB/T 20105 Air duct coated cloth
GB/T 39337 Technical requirements for comprehensive mechanized ultra-high water material bag-filling coal mining
HG/T 2580 Determination of tensile strength and elongation at break of rubber or plastic coated fabric
JB/T 7043 hydraulic axial piston pump
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 High water material
It is composed of two components of material A and material B. When the two components are added with water to form a single component slurry, it will not condense for several hours. Once mixed, it will
A hydraulic material that can quickly condense and harden, and the volume of water is less than 90%.
3.2 A material
The main material composed of bauxite, limestone and a small amount of sulphoaluminate cement clinker fired from other minerals and suspended dispersant, retarder, etc.
The auxiliary materials composed of ingredients are ground to a certain fineness.
3.3 Material B
The main material composed of anhydrite and quicklime and the auxiliary material composed of suspended dispersant, coagulant and other ingredients are ground to a certain fineness.
3.4 Filling body
Consolidation formed after solidification of high-water material mixed slurry.
3.5 In situ
The filling bodies are all located in the goaf, and the original roadway is completely reserved along the edge of the goaf.
3.6 Semi-in-situ
A way of filling and retaining lanes by the side of the lane in which the filling body is wholly or partially located in the original lane.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
How to Download GB/T 39336-2020
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
GB/T 10004-2026 — Plastic/Plastic laminated films and pouches for packaging
GB/T 10007-2026 — Rigid cellular plastics - Determination of shear properties
Secure payment via Stripe
Payments accepted
GB/T 39336-2020
$175.00